OG verbal 语法题 not but 时态对称问题

xyys

The voluminous personal papers of ThomasAlva Edison reveal that this inventions typically sprang tolifenot in aflash of inspiration but evolved slowly from previous works.

(A) sprang tolifenot in a flash ofinspiration but evolved slowly
(B) sprang tolifenot in a flash of inspirationbut were slowly evolved
(C) didnotspringtolife in a flash ofinspiration but evolved slowly
(D) didnotspringtolife in a flash ofinspiration but had slowly evolved
(E) didnotspringtolife in a flash ofinspiration but they were slowly evolved
答案是C，
但是C选项not后是spring动词原形，but后是evolved动词过去时，怎么对称呢？

can1love

Lz那样对称意思就是not spring and not evolv. 完没有转折的意思了

xyys

可是，did 在not的前面，不是应该not后的spring 和 but后的evolve平行？

tyyhappy

对称的是 did not spring 和 evolved。